| abstract |
(57) [Summary] [Purpose] To provide a hose for automobile fuel piping, which is excellent in sour gasoline resistance, gasoline permeation resistance, fire resistance, etc., and which can be obtained at a low cost without complicated processes. . [Structure] An inner layer 1 is formed of a fluorine-based resin, an intermediate layer 2 is formed on the outer periphery of the inner layer 1 using a synthetic resin other than the fluorine-based resin, and a rubber elastic material is used on the outer periphery of the intermediate layer 2. The outer layer 3 is formed. |